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https://www.readbyqxmd.com/read/28820634/in-vivo-and-in-vitro-effects-of-atm-atr-signaling-pathway-on-proliferation-apoptosis-and-radiosensitivity-of-nasopharyngeal-carcinoma-cells
#1
Ming Wang, Gang Liu, Guo-Ping Shan, Bing-Bing Wang
AIM: The study investigated the ability of ataxia-telangiectasia mutated (ATM)/Rad3-related (ATR) signaling pathway to influence the proliferation, apoptosis, and radiosensitivity of nasopharyngeal carcinoma (NPC) cells. MATERIALS AND METHODS: NPC tissues and corresponding adjacent normal tissues were collected from 143 NPC patients. The NPC CNE2 cells were assigned into a control group, X-ray group, CGK-733 group, and X-ray+CGK-733 group. The mRNA levels of ATM and ATR were evaluated using quantitative real-time polymerase chain reaction (qRT-PCR) and the protein levels of ATM and ATR using western blotting...
August 2017: Cancer Biotherapy & Radiopharmaceuticals
https://www.readbyqxmd.com/read/28820254/blockade-of-asparagine-endopeptidase-inhibits-cancer-metastasis
#2
Qi Qi, Obiamaka Obianyo, Yuhong Du, Haian Fu, Shiyong Li, Keqiang Ye
Asparagine endopeptidase (AEP), also called legumain, is highly expressed in various solid tumors, promoting cancer cell invasion, migration, and metastasis. It has been proposed to be a prognostic marker and therapeutic target for cancer treatment. However, an effective nonpeptide, small-molecule inhibitor against this protease has not yet been identified. Here we show that a family of xanthine derivatives selectively inhibit AEP and suppress matrix metalloproteinase (MMP) cleavage, leading to the inhibition of cancer metastasis...
August 18, 2017: Journal of Medicinal Chemistry
https://www.readbyqxmd.com/read/28820179/effects-of-dck-knockdown-on-proliferation-apoptosis-and-tumorigenicity-in-vivo-of-cervical-cancer-hela-cells
#3
Q-Y Shang, C-S Wu, H-R Gao
The present study explored the effect that deoxycytidine kinase (DCK) knockdown had on proliferation, apoptosis and tumorigenicity in vivo of cervical cancer HeLa cells. Human cervical cancer HeLa cells that had received no prior treatment were selected from the HeLa group. The HeLa-negative control (NC) group consisted of cells that had undergone an empty vector treatment, and finally the HeLa-short hairpin RNA (shRNA) group included cells that were treated by means of shRNA-DCK expression. DCK expressions were evaluated by quantitative real-time polymerase chain reaction in addition to western blotting assays...
August 18, 2017: Cancer Gene Therapy
https://www.readbyqxmd.com/read/28819442/interferon-%C3%AE-promotes-the-expression-of-cancer-stem-cell-markers-in-oral-squamous-cell-carcinoma
#4
Hailong Ma, Shufang Jin, Wenyi Yang, Zhuowei Tian, Shuli Liu, Yang Wang, Ge Zhou, Mei Zhao, Shalva Gvetadze, Zhiyuan Zhang, Jingzhou Hu
Objectives: IFNα can stimulate an antitumor immune response and has a direct inhibition on cancer cells. This study is to test whether IFNα can activate dormant cancer stem cell (CSC) in oral squamous cell carcinoma (OSCC) to facilitate their elimination by chemotherapy. Materials and methods: Nude mouse transplantation tumor model was established and administrated with IFNα and saline. The influence on CD44 and ALDH1A1 expression under IFNα treatment was detected by in vivo experiments. Flow cytometry, western blot, and immunofluorescence were used to detect the expression of CD44 and ALDH1A1 after INFa treatment in OSCC cell lines...
2017: Journal of Cancer
https://www.readbyqxmd.com/read/28819440/microrna-204-5p-inhibits-invasion-and-metastasis-of-laryngeal-squamous-cell-carcinoma-by-suppressing-forkhead-box-c1
#5
Wei Gao, Yongyan Wu, Xiaoling He, Chunming Zhang, Meixia Zhu, Bo Chen, Qingqing Liu, Xukuan Qu, Weiyan Li, Shuxin Wen, Binquan Wang
Background and aim: Understanding the molecular biological mechanisms underlying laryngeal squamous cell carcinoma (LSCC) invasion and metastasis is crucial for diagnosis, treatment, and prognosis. We aimed to examine the expression of the tumor suppressor microRNA-204-5p (miR-204-5p) and its target gene, forkhead box C1 (FOXC1), in human LSCC and explore their roles in the malignant behaviors of LSCC Hep-2 and TU-177 cells. Methods: The regulatory effects of miR-204-5p on the 3' untranslated region of FOXC1 predicted by bioinformatics were tested by dual-luciferase reporter assay...
2017: Journal of Cancer
https://www.readbyqxmd.com/read/28819428/development-of-a-new-analog-of-sgk1-inhibitor-and-its-evaluation-as-a-therapeutic-molecule-of-colorectal-cancer
#6
Xuchun Liang, Chunling Lan, Jinzhe Zhou, Wencheng Fu, Xuesha Long, Yu An, Guanming Jiao, Kejin Wang, Yongqin Li, Jiahong Xu, Qi Huang, Bin Xu, Junjie Xiao
Colorectal cancer (CRC) is one of the most leading causes of cancer-related death worldwide. The serum and glucocorticoid inducible kinase SGK1 is highly expressed and involved in several tumors. GSK650394, a SGK1 inhibitor, has been proved to be effective in impeding tumor growth in vitro. In this study, we developed a novel analog of GSK650394, and evaluated its effects on CRC cells and tumor growth both in vitro and in vivo. HCT116 cells were treated with a concentration gradient of new developed compounds and cholecystokinin octapeptide (CCK-8) assay was used to calculate the IC50 value of every analog...
2017: Journal of Cancer
https://www.readbyqxmd.com/read/28819405/linc00152-promotes-cancer-cell-proliferation-and-invasion-and-predicts-poor-prognosis-in-lung-adenocarcinoma
#7
Pei-Pei Zhang, Yi-Qin Wang, Wei-Wei Weng, Wei Nie, Yong Wu, Yu Deng, Ping Wei, Mi-Die Xu, Chao-Fu Wang
Background: The long non-coding RNA Linc00152 stimulates tumor progression in cancer. However, its clinical significance and biological functions in lung adenocarcinoma remains unknown. We evaluate the expression of Linc00152 in lung adenocarcinoma and its possible correlation with clinicopathologic features and patient survival to reveal its biological effects in cancer progression and prognosis. Methods: Total RNA extraction was performed on 110 pairs of lung adenocarcinoma and adjacent normal tissue samples, and then RT-qPCR was conducted...
2017: Journal of Cancer
https://www.readbyqxmd.com/read/28819378/hif-is-not-essential-for-suppression-of-experimental-tumor-growth-by-mtor-inhibition
#8
Karl X Knaup, Regina Guenther, Johanna Stoeckert, Juliana M Monti, Kai-Uwe Eckardt, Michael S Wiesener
The Hypoxia Inducible Transcription Factor (HIF) is the master regulator of cellular response to hypoxic adaptation. Solid tumors inevitably harbour hypoxic regions with subsequent stabilization and activation of HIF and HIF target genes due to poor vascularization and rapid growth. The mammalian target of rapamycin (mTOR) is a global regulator of cellular growth and proliferation, which can also regulate HIF expression independantly of hypoxia via specific activation of cellular translation and transcription...
2017: Journal of Cancer
https://www.readbyqxmd.com/read/28819023/therapeutic-effects-of-xpo1-inhibition-in-thymic-epithelial-tumors
#9
Fabio Conforti, Xu Zhang, Guanhua Rao, Tommaso De Pas, Yoko Yonemori, Jose A Rodriguez, Justine N McCutcheon, Raneen Rahhal, Anna T Alberobello, Yisong Wang, Yu-Wen Zhang, Udayan Guha, Giuseppe Giaccone
Exportin 1 (XPO1) mediates nuclear export of many cellular factors known to play critical roles in malignant processes, and selinexor (KPT-330) is the first XPO1-selective inhibitor of nuclear export (SINE) compound in advanced clinical development phase for cancer treatment. We demonstrated here that inhibition of XPO1 drives nuclear accumulation of important cargo tumor suppressor proteins (TSP) including transcription factor FOXO3a and p53 in thymic epithelial tumor (TET) cells and induces p53-dependent and -independent antitumor activity in vitro...
August 17, 2017: Cancer Research
https://www.readbyqxmd.com/read/28818073/role-of-the-lncrna-abhd11-as1-in-the-tumorigenesis-and-progression-of-epithelial-ovarian-cancer-through-targeted-regulation-of-rhoc
#10
Dan-Dan Wu, Xi Chen, Kai-Xuan Sun, Li-Li Wang, Shuo Chen, Yang Zhao
BACKGROUND: There is increasing evidence in support of the role of lncRNAs in tumor cell proliferation, differentiation and apoptosis. METHODS: We examined the expression of the lncRNA ABHD11-AS1 in epithelial ovarian cancer (EOC) tissues and normal ovarian tissues by real-time quantitative PCR (qRT-PCR). After inducing ABHD11-AS1 downregulation by small interfering RNA (siRNA) or ABHD11-AS1 overexpression by plasmid transfection, we examined the EOC cell phenotypes and expression of related molecules...
August 17, 2017: Molecular Cancer
https://www.readbyqxmd.com/read/28816398/optical-properties-of-mice-s-stool-in-550-1000-nm-wavelength-range
#11
Helene Isler, Catherine Germanier, Linda Ahnen, Jingjing Jiang, Scott Lindner, Aldo Di Costanzo Mata, Tanja Karen, Salvador Sánchez Majos, Martin Wolf, Alexander Kalyanov
The aim of this work was to measure optical properties of stool of mice to provide this relevant wavelength-dependent behavior for optical imaging modalities such as fluorescent molecular tomography and near-infrared optical tomography. BALB/c nude female mice were studied and optical properties of the stool were determined by employing the inverse adding-doubling approach. The animals were kept on chlorophyll-free diet. Nine stool samples were measured. The wavelength-dependent behavior of absorption and scattering in 550-1000 nm range is presented...
August 17, 2017: Journal of Biophotonics
https://www.readbyqxmd.com/read/28816013/new-neurotensin-analogue-radiolabeled-by-99m-technetium-as-a-potential-agent-for-tumor-identification
#12
Iman Emrarian, Nourollah Sadeghzadeh, Seyed Mohammad Abedi, Saeid Abediankenari
INTRODUCTION: It has been shown that more than 75% of ductal pancreatic adenocarcinomas are overexpress neurotensin (NT) receptors. Overexpression of NT receptors has been reported in various human tumor types. Hence, a non-invasive diagnosis and staging method could be very beneficial. In this work, we describe radiolabeling and evaluation of new neurotensin analogues to target neurotensin receptor-positive tumors such as pancreatic carcinoma. METHODS: Radiolabeling was performed at 95°C for 10 min using(99m) Tc in the presence of tricine/EDDA exchange labeling...
August 16, 2017: Chemical Biology & Drug Design
https://www.readbyqxmd.com/read/28815884/periodontal-ligament-like-tissue-regeneration-with-drilled-porous-decalcified-dentin%C3%A2-matrix-sheet-composite
#13
Ge Feng, Yan Wu, Yu Yong, Lan Huang, Shu An, Bo Hu, Jun Luo, Jinlin Song
OBJECTIVE: In this study, we constructed a composite by combining the human dental follicle cell sheet and a manual drilled porous decalcified dentin matrix that was used to construct ectopic tissue-engineered periodontal ligament-like tissues in renal capsules of nude mice. MATERIALS AND METHODS: Human dental follicle cells were harvested from human lower third molars and then embedded into a temperature-sensitive culture dish. These cells were then placed into frozen porous decalcified dentin matrix sheets and induced by 50 g/ml ascorbic acid...
August 16, 2017: Oral Diseases
https://www.readbyqxmd.com/read/28815294/diallyl-trisulfide-inhibits-proliferation-invasion-and-angiogenesis-of-glioma-cells-by-inactivating-wnt-%C3%AE-catenin-signaling
#14
Qingxia Tao, Cuiying Wu, Ruxiang Xu, Lijun Niu, Jiazhen Qin, Ning Liu, Peng Zhang, Chong Wang
Aberrant activation of Wnt/β-catenin signaling leads to increased cell proliferation and survival and promotes the development of various human tumors, including glioma, one of the most common primary brain tumors. The treatment efficacy of many anticancer drugs remains limited or unsatisfactory and it is urgently necessary to develop effective and low-toxicity anticancer drugs or strategies, especially for glioma. Here, we report that diallyl trisulfide suppresses survival, migration, invasion and angiogenesis in glioma cells...
August 17, 2017: Cell and Tissue Research
https://www.readbyqxmd.com/read/28814868/nano-sized-cytochrome-p450-3a4-inhibitors-to-block-hepatic-metabolism-of-docetaxel
#15
Marion Paolini, Laurence Poul, Céline Berjaud, Matthieu Germain, Audrey Darmon, Maxime Bergère, Agnès Pottier, Laurent Levy, Eric Vibert
Most drugs are metabolized by hepatic cytochrome P450 3A4 (CYP3A4), resulting in their reduced bioavailability. In this study, we present the design and evaluation of bio-compatible nanocarriers trapping a natural CYP3A4-inhibiting compound. Our aim in using nanocarriers was to target the natural CYP3A4-inhibiting agent to hepatic CYP3A4 and leave drug-metabolizing enzymes in other organs undisturbed. In the design of such nanocarriers, we took advantage of the nonspecific accumulation of small nanoparticles in the liver...
2017: International Journal of Nanomedicine
https://www.readbyqxmd.com/read/28814318/annexin-a2-could-enhance-multidrug-resistance-by-regulating-nf-%C3%AE%C2%BAb-signaling-pathway-in-pediatric-neuroblastoma
#16
Yi Wang, Kai Chen, Yihong Cai, Yuanxia Cai, Xiaojun Yuan, Lifeng Wang, Zhixiang Wu, Yeming Wu
BACKGROUND: Chemotherapy is one of major therapeutic regimens for neuroblastoma (NB) in children. However, recurrence and metastasis associated with poor prognosis caused by acquired multidrug resistance remains a challenge. There is a great need to achieve new insight into the molecular mechanism of drug resistance in NB. The aim of this study is to identify novel drug sensitivity-related biomarkers as well as new therapeutic targets to overcome chemoresistance. METHODS: We proteome-wide quantitatively compared protein expression of two NB cell lines with different drug sensitivities, isolated from the same patient prior to and following chemotherapy...
August 16, 2017: Journal of Experimental & Clinical Cancer Research: CR
https://www.readbyqxmd.com/read/28811844/lsd1-dual-function-in-mediating-epigenetic-corruption-of-the-vitamin-d-signaling-in-prostate-cancer
#17
Sebastiano Battaglia, Ellen Karasik, Bryan Gillard, Jennifer Williams, Trisha Winchester, Michael T Moser, Dominic J Smiraglia, Barbara A Foster
BACKGROUND: Lysine-specific demethylase 1A (LSD1) is a key regulator of the androgen (AR) and estrogen receptors (ER), and LSD1 levels correlate with tumor aggressiveness. Here, we demonstrate that LSD1 regulates vitamin D receptor (VDR) activity and is a mediator of 1,25(OH)2-D3 (vitamin D) action in prostate cancer (PCa). METHODS: Athymic nude mice were xenografted with CWR22 cells and monitored weekly after testosterone pellet removal. Expression of LSD1 and VDR (IHC) were correlated with tumor growth using log-rank test...
2017: Clinical Epigenetics
https://www.readbyqxmd.com/read/28811223/influence-and-mechanism-of-5-aminolevulinic-acid-photodynamic-therapy-on-the-metastasis-of-esophageal-carcinoma
#18
Xiaona Zhang, Longmei Cai, Jingcai He, Xiaoyan Li, Libo Li, Xiaohua Chen, Ping Lan
BACKGROUD: 5-Aminolevulinic acid (ALA) mediated photodynamic therapy (PDT) for the treatment of esophageal cancer was more and more popularly used since it was approved for the treatment of advanced esophageal cancer in 1996. It has been reported to influence the tumor growth and metastasis via a variety of signaling pathways, but its mechanism remains to be further studied. This research studied the effects of ALA-PDT on esophageal carcinoma in vitro and in vivo, discovering its molecular regulating mechanism and the way to enhence the PDT effect...
August 12, 2017: Photodiagnosis and Photodynamic Therapy
https://www.readbyqxmd.com/read/28811006/improved-fat-transplantation-survival-by-using-the-conditioned-medium-of-vascular-endothelial-growth-factor-transfected-human-adipose-derived-stem-cells
#19
Yang Zhang, Li-Ling Xiao, Jiang-Xuan Li, Hong-Wei Liu, Sheng-Hong Li, Yan-Yun Wu, Xuan Liao, Cong-Qiang Rao
Autologous fat transplantation has been applied widely in clinic. However, the low survival rate is still a problem to be solved. Studies shows that the human adipose-derived stem cells (ADSCs) transfected by vascular endothelial growth factor (VEGF) can improve the survival rate of autologous fat transplantation. Our study is to evaluate the effects of the conditioned medium of VEGF-transfected human adipose-derived stem cells (VEGF-ADSCs-CM) on fat transplantation. ADSCs were isolated and transfected with MOI = 40...
August 2017: Kaohsiung Journal of Medical Sciences
https://www.readbyqxmd.com/read/28810875/role-of-iqgap3-in-metastasis-and-epithelial-mesenchymal-transition-in-human-hepatocellular-carcinoma
#20
Yongjie Shi, Nan Qin, Qiang Zhou, Yanqiu Chen, Sicong Huang, Bo Chen, Gang Shen, Hongyun Jia
BACKGROUND: Hepatocellular carcinoma (HCC) is one of the most lethal cancers worldwide owing to its high rates of metastasis and recurrence. The oncogene IQ motif-containing GTPase activating protein 3 (IQGAP3) is ubiquitously overexpressed in several human cancers, including liver, ovary, lung, large intestine, gastric, bone marrow, and breast malignancies and is involved in the invasion and metastasis of cancer cells. Therefore, we aimed to determine the biological role and molecular mechanism of IQGAP3 in HCC...
August 15, 2017: Journal of Translational Medicine
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